var xmlHttp

function pnamech(){
	sel = document.getElementById("xposition")	
	ppid = sel.value
	setPname(ppid)
}

function setPname(pid){ 
	var url="get_pname.php?position="+pid
	xmlHttp=GetXmlHttpObject(setPnameRun)
	xmlHttp.open("GET", url , true)
	xmlHttp.send(null)
} 

function setPnameRun(){ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
		document.getElementById("pname_dat").innerHTML=xmlHttp.responseText 
	} 
} 


function GetXmlHttpObject(handler){ 
	var objXmlHttp=null

	if (navigator.userAgent.indexOf("Opera")>=0){
		alert("This example doesn't work in Opera") 
		return 
	}
	if (navigator.userAgent.indexOf("MSIE")>=0){ 
		var strName="Msxml2.XMLHTTP"
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0){
			strName="Microsoft.XMLHTTP"
		} 
		try{ 
			objXmlHttp=new ActiveXObject(strName)
			objXmlHttp.onreadystatechange=handler 
			return objXmlHttp
		}catch(e){ 
			alert("Error. Scripting for ActiveX might be disabled") 
			return 
		} 
	} 
	if (navigator.userAgent.indexOf("Mozilla")>=0){
		objXmlHttp=new XMLHttpRequest()
		objXmlHttp.onload=handler
		objXmlHttp.onerror=handler 
		return objXmlHttp
	}
} 
